*1:See also https://sumita-m.hatenadiary.com/entry/20130328/1364434114 https://sumita-m.hatenadiary.com/entry/2020/03/21/020825 https://sumita-m.hatenadiary.com/entry/2020/03/25/024841 https://sumita-m.hatenadiary.com/entry/2020/04/02/221024 https://sumita-m.hatenadiary.com/entry/2021/03/17/082547 https://sumita-m.hatenadiary.com/entry/2021/03/18/091549 https://sumita-m.hatenadiary.com/entry/2021/03/30/085051
*2:See also https://sumita-m.hatenadiary.com/entry/2020/03/10/022606 https://sumita-m.hatenadiary.com/entry/2020/07/11/092525 https://sumita-m.hatenadiary.com/entry/2020/07/15/111420 https://sumita-m.hatenadiary.com/entry/2020/09/17/012308 https://sumita-m.hatenadiary.com/entry/2020/10/17/185518 https://sumita-m.hatenadiary.com/entry/2021/06/15/004301 https://sumita-m.hatenadiary.com/entry/2021/10/12/210852 https://sumita-m.hatenadiary.com/entry/2021/11/29/185003
